Fixes #342. Spinner opacity hard-coded.
- Styles now do have effect on opacity.
- Small behavioural change, without any style a spinner now has an
opacity of 1, previously 0.9. This shouldn't be a problem, though.
Without any styles, the spinner wouldn't show up anyway.
Massive whitespace cleanup.
* Fixing default styles (who did that?)
more waiter renaming
renaming Waiter to Spinner
updating the mask default styles.
adding css file for default styles for Mask
updating docs and whatnot per the css changes
new plugins: mask and waiter; note that waiter has assets